<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
   *{
	   text-align:center;
	   }
    #div001{
		width:620px;
		height:200px;
		background-color:#F00;
		margin-bottom:10px
		}
	 #div002{
		width:200px;
		height:200px;
		background-color:#0F0; 
		float:left;
		}
	 #div005{
		width:200px;
		height:200px;
		background-color:#9CC;
		float:left; margin-left:10px
	     }
	 #div003{
		width:200px;
		height:200px;
		background-color:#00F;
		float:left;
		margin-left:10px;
		margin-bottom:10px;
		}
	 #div004{
		width:620px;
		height:200px;
		background-color:#666;
		
		clear:both;
		}

</style>
</head>

<body>
<div id="div001">我不动</div>
<div id="div002">向右浮动</div>
<div id="div005">中间</div>
<div id="div003">向左浮动</div>
<div id="div004">底部</div>
</body>
</html>
